You may have your home stocked with survival tools for the apocalypse, but what happens if disaster strikes while you're at work? Never fear, Jörg Sprave is here to teach you how to make slingshots and pickaxes from ordinary office supplies.

We've already featured Sprave's One Piece slingshot, but here are some weapons you can try out at home — or in the office. Businessweek challenged Sprave to put his deadly touch on ordinary office supplices and Sprave did just that. But remember: if you put a coworkers' eyes out, that's probably grounds for termination. These are best tested in an outdoor space, preferably with no non-zombified people nearby.